{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348847",
    "entityType": "User",
    "nonce": "0xcb570d7ffeb5de9a59d1766b7d7290233d411cf32e903c6dd8bfab56de43ebb8",
    "signature": "0x3ca5696fd55ee25479b495125b8a2400a4a907d44134be59b33ceed194f0be9f28f261de5cf2f83565a63dfa945af0b8f887cb27242487bf2c032d5358ebb8741b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}